Progress does not compel us to settle centuries-long debates about the role of government for all time, but it does require us to act in our time.

Since I'm the president and Democrats have controlled the House and the Senate, it's understandable that people are saying, you know, 'What have you done?'

The study of geography is about more than just memorizing places on a map. It's about understanding the complexity of our world, appreciating the diversity of cultures that exists across continents. And in the end, it's about using all that knowledge to help bridge divides and bring people together.

And lest we get on our high horse and think this is unique to some other place, remember that during the Crusades and the Inquisition, people committed terrible deeds in the name of Christ. In our home country, slavery and Jim Crow all too often was justified in the name of Christ.

ISIS is not an organization that can destroy the United States. This is not a huge industrial power that can pose great risks to us, institutionally or in a systematic way. But they can hurt us. And they can hurt our people and our families.

I think Ronald Reagan changed the trajectory of America in a way that Richard Nixon did not and in a way that Bill Clinton did not. He put us on a fundamentally different path because the country was ready for it.

I know many of you are hurting and angry about the economy, and I don't blame you. It's the worst economy since the Great Depression. When consumers can't buy and businesses won't expand for lack of customers, the government has to be the purchaser and employer of last resort. We learned that in the Great Depression, but Republicans obviously didn't - and they've blocked every jobs program I've offered.